{"id":158,"date":"2019-08-01T15:43:57","date_gmt":"2019-08-01T15:43:57","guid":{"rendered":"https:\/\/sites.krieger.jhu.edu\/mccloskey-lab\/?page_id=158"},"modified":"2019-08-01T20:35:14","modified_gmt":"2019-08-01T20:35:14","slug":"object-axes-object-orientation-object-shape","status":"publish","type":"page","link":"https:\/\/sites.krieger.jhu.edu\/mccloskey-lab\/current-projects\/object-axes-object-orientation-object-shape\/","title":{"rendered":"Object Axes, Object Orientation, &amp; Object Shape"},"content":{"rendered":"<p>This project explores the role of coordinate axes in representing object orientation and shape in the visual system.\u00a0 Methods include<\/p>\n<ul>\n<li>analysis of adults\u2019 and children\u2019s errors in memory for object orientation<\/li>\n<li>analysis of errors in perception of object orientation in a woman with a developmental deficit in visual location and orientation perception<\/li>\n<li>fMRI studies probing neural representation of object orientation<\/li>\n<\/ul>\n<p>Among the conclusions emerging from the studies are<\/p>\n<ul>\n<li>object orientation is represented as a relationship between object-centered and extrinsic frames of reference<\/li>\n<li>orientation representations are compositional, consisting of multiple independent parameters<\/li>\n<li>orientation errors occur when one or more parameters of an orientation representation are missing or erroneous, with the type of error depending on the parameter(s) affected<\/li>\n<li>the principal axis of an object-centered reference frame is defined to coincide with the object\u2019s axis of elongation, and not with a global shape axis<\/li>\n<\/ul>\n<p>Current studies are exploring<\/p>\n<ul>\n<li>the role of object-part axes in representing object shape<\/li>\n<li>tactile vs. visual representations of object orientation<\/li>\n<\/ul>\n<h2>Relevant Publications<\/h2>\n<p>Chaisilprungraung, T., German, J., &amp; McCloskey, M. (2019).\u00a0 How are object shape axes defined? Evidence from mirror-image confusions.\u00a0 <em>Journal of Experimental Psychology: Human Perception and Performance, 45, <\/em>111-124.<\/p>\n<p>Gregory, E., Landau, B., &amp; McCloskey, M.\u00a0 (2011).\u00a0 Representation of Object Orientation in Children: Evidence from Mirror-Image Confusions.\u00a0 <em>Visual Cognition<\/em>, <em>19<\/em>, 1035-1062<em>.<\/em><\/p>\n<p>Gregory, E., &amp; McCloskey, M.\u00a0 (2010).\u00a0 Mirror-image confusions: Implications for representation and processing of object orientation.\u00a0 <em>Cognition<\/em>, <em>116<\/em>, 110-129.<\/p>\n<p>Hatfield, M., McCloskey, M., &amp; Park, S.\u00a0 (2016).\u00a0 Neural representation of object orientation: A dissociation between MVPA and repetition suppression. <em>Neuroimage<\/em>, <em>139<\/em>, 136-148.<\/p>\n<p>McCloskey, M.\u00a0 (2009).\u00a0 <em>Visual reflections: A perceptual deficit and its implications.<\/em> New York: Oxford University Press.<\/p>\n<p>McCloskey, M., Valtonen, J., &amp; Sherman, J.\u00a0 (2006). Representing orientation: A coordinate-system hypothesis, and evidence from developmental deficits.\u00a0 <em>Cognitive Neuropsychology<\/em>, <em>23<\/em>, 680-713.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>This project explores the role of coordinate axes in representing object orientation and shape in the visual system.\u00a0 Methods include analysis of adults\u2019 and children\u2019s errors in memory for object orientation analysis of errors in perception of object orientation in a woman with a developmental deficit in visual location and orientation perception fMRI studies probing [&hellip;]<\/p>\n","protected":false},"author":95,"featured_media":0,"parent":24,"menu_order":1,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_acf_changed":false,"footnotes":""},"class_list":["post-158","page","type-page","status-publish","hentry"],"acf":[],"_links":{"self":[{"href":"https:\/\/sites.krieger.jhu.edu\/mccloskey-lab\/wp-json\/wp\/v2\/pages\/158","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/sites.krieger.jhu.edu\/mccloskey-lab\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/sites.krieger.jhu.edu\/mccloskey-lab\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/sites.krieger.jhu.edu\/mccloskey-lab\/wp-json\/wp\/v2\/users\/95"}],"replies":[{"embeddable":true,"href":"https:\/\/sites.krieger.jhu.edu\/mccloskey-lab\/wp-json\/wp\/v2\/comments?post=158"}],"version-history":[{"count":2,"href":"https:\/\/sites.krieger.jhu.edu\/mccloskey-lab\/wp-json\/wp\/v2\/pages\/158\/revisions"}],"predecessor-version":[{"id":196,"href":"https:\/\/sites.krieger.jhu.edu\/mccloskey-lab\/wp-json\/wp\/v2\/pages\/158\/revisions\/196"}],"up":[{"embeddable":true,"href":"https:\/\/sites.krieger.jhu.edu\/mccloskey-lab\/wp-json\/wp\/v2\/pages\/24"}],"wp:attachment":[{"href":"https:\/\/sites.krieger.jhu.edu\/mccloskey-lab\/wp-json\/wp\/v2\/media?parent=158"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}